Hartlaub's Duck vs Blue-billed Teal
Pteronetta hartlaubii مقارنةً بـ Spatula hottentota
Side-by-Side Comparison
| السمة | Hartlaub's Duck | Blue-billed Teal |
|---|---|---|
| الاسم العلمي | Pteronetta hartlaubii | Spatula hottentota |
| الرتبة | Anseriformes | Anseriformes |
| الفصيلة | Anatidae | Anatidae |
| حالة الحفاظ | Least Concern | Least Concern |
| الطول | — | — |
| طول الجناح | 53,4 cm (21.0 in) | 29,4 cm (11.6 in) |
| الوزن | 910,0 g (32.10 oz) | 269,2 g (9.50 oz) |
| النظام الغذائي | Eats seeds, aquatic invertebrates, and plant matter; dabbles in ponds and marshes; diet more invertebrate-heavy … | Feeds on seeds, aquatic plants, and invertebrates; filter-feeds in shallow water; broadly omnivorous and seasonally … |
| عدد البيض في الوضع | 7-11 | 5-12 |
| Population Trend | — | — |
Habitat Comparison
Hartlaub's Duck
Tropical rainforest streams, forest pools, and shaded swamps from Guinea and Sierra Leone east through the Congo Basin to Uganda and western Kenya. Requires undisturbed riverine forest with shaded water.
Blue-billed Teal
Freshwater lakes, marshes, pans, and flooded grasslands across sub-Saharan Africa from Senegal and Sudan south to the Cape. Nomadic; follows seasonal rains. Common but easily overlooked among reed beds.
Song & Call Comparison
Hartlaub's Duck
A low, nasal 'quack' and soft 'kek-kek'. Generally quieter than other perching ducks. Calls from dense Central and West African rainforest where it is rarely observed.
Blue-billed Teal
Male utters a soft, teal-like peep; female gives a muted quack. Pairs call quietly in dense papyrus; soft contact calls help birds maintain proximity in thick African marsh vegetation.
Geographic Range & Migration
Hartlaub's Duck
Breeds in wetlands across Eurasia; winters from Africa and the Middle East to South and Southeast Asia.
Blue-billed Teal
Breeds in Arctic and subarctic Eurasia; winters at sea in the North Atlantic and from western Europe to eastern Africa.
حالة الحفاظ
Hartlaub's Duck
Blue-billed Teal
How to Tell Them Apart
Hartlaub's Duck
Dark chocolate-brown body; white patches at side of head distinctive. Males have dark blue frontal shield extending from bill. Wings show pale blue-gray inner forewing. Legs gray. West African forest …
Blue-billed Teal
Small; males have pale blue-gray bill contrasting with brown-gray body. Head finely spotted; underparts barred brown and white. Males show powder-blue forewing in flight. Females browner. African marsh species.
About These Birds
Hartlaub's Duck
A large dark duck with a chestnut-brown body, dark head and neck, pale blue speculum, and bright red base to the bill in males. Found in tropical African rainforest streams and forest swamps. One of Africa's least-studied ducks. Lives singly or in pairs in shaded forest waterways.
Blue-billed Teal
A small dark teal with blue-grey bill and legs, brown-streaked plumage, and fine pale spotting on the flanks. The most widespread teal in sub-Saharan Africa. Found on freshwater lakes and marshes. Highly nomadic; follows seasonal rainfall. Swims low in the water like a pochard.